Abstract
On the basis of TPR spectra of cumene adsorbed on oxide catalysts, the relationship between Hammett acidity and reciprocal benzene formation temperature (H0 = 32.50 − 18.37 х103/Tm) has been found. Using this relationship, it is possible to estimate a value of H0 for oxide materials in an interval of −5.6 < H0 < −16. The correlation between acidic strength of B-sites and rate constants of heterogeneous catalytic reactions is discussed.
Similar content being viewed by others
REFERENCES
K. Tanabe: Catalysts and Catalytic processes. Mir, Moscow 1993.
A. Corma: Chem. Rev., 95, 559 (1995).
J.F. Haw, M.B. Hall, A.E. Alvarado-Swaisgood, E.J. Munson, Z. Lin, L.W. Beck, T. Howard: J. Am. Chem. Soc., 116, 7308 (1994).
B.W. Wojciechowski, A. Corma: Catalytic Cracking. Catalysts, Chemistry, and Kinetics, Marcel Dekker, 1986.
V.V. Brei, O.V. Melezhyk, S.V. Prudius, N.N. Levchuk, K.I. Patrylak: Stud. Surface Sci. Catal., 143, 387 (2002).
M. Hino, K. Arata: J. Chem. Soc., Chem. Commun., 851 (1980).
M. Hino, K. Arata: J. Chem. Soc., Chem. Commun., 1259 (1988).
R.M. Barrer: Hydrothermal Chemistry of Zeolites, Academic Press, New York 1982.
L. Hammett: Physical Organic Chemistry, McGraw-Hill, New York, London, Sydney, Toronto 1970.
R.J. Cvetanovic, Y. Amenomiya: Adv. Catal., 17, 103 (1967).
K. Tanabe: Solid Acids and Bases, Academic Press, New York 1970.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Brei, V.V., Khomenko, K.N. & Shystka, D.V. A correlation between Hammett acidity of catalysts and their activity in temperature-programmed reaction of cumene dealkylation. Reaction Kinetics and Catalysis Letters 81, 197–202 (2004). https://doi.org/10.1023/B:REAC.0000016535.01531.95
Issue Date:
DOI: https://doi.org/10.1023/B:REAC.0000016535.01531.95